Mortised lock



June '5, 1934. I G. w. ALDEEN 1,961,187

. I MORTISED LOCK 7 Filed July is. 1930 Patented June 5, 1934 MORTISEDLOCK Gedor W. Aldeen, Rockford, Ill., assignor to American CabinetHardware Corp., Rockford, Ill., a corporation of Illinois ApplicationJuly 18, 1930, Serial No. 468,877

23 Claims.

The invention relates in general to locks and more particularly to alock constructed to fit in a mortise cut in the door of a locker,cabinet, closet or the like.

The general object of the invention is to provide a novel lock for thispurpose which has a key-operated device and a permutation-operateddevice, either of which may be used to open the lock independently ofthe other.

Another object is to provide a lock of this character which cannoteasily be forced open or picked,- and yet may be manufactured at arelatively low cost.

A further object is to provide a lock of this character, the only partof which to appear on the front face of the door is the dial and aconcentric sleeve for operating the permutation-operated device and akey cylinder concentrically arranged within the dial.

Still another object is to provide a look having a plurality of tumblerswhich must be properly positioned before the bolt may be thrown andwhich may be so positioned either by the key or by a lever whosemovement is controlled by the permutation-operated device.

A still further object is to provide a lock of this character having acam member first for moving the tumbler-positioning lever when thepermutation-operated device is properly set, and then for throwing thebolt.

Another object is to provide a lock in which the permutation device isnot afiected by any pressure that may be applied to the bolt.

Other objects and advantages will become apparent from the followingdescription taken in connection withthe accompanying drawing, in which:

Figure 1 is a fragmentary edge elevation of a door or the like having alock embodying the features of the invention mounted in a mortise cut inthe door.

-Fig. 2 is-a side elevation of the lock.

Fig. 3 is a view similar to Fig. 2 but with part of the casing removed.

Fig. 4 is a view similar to Fig.3 but with parts removed to show thepermutation device.

Fig. 5 is a view similar to Fig. 4 but with the permutation deviceremoved, the bolt being in a locked position.

Fig. 6 is a view similar to Fig. 5 but with the parts in their positionwhen unlocked-by the permutation device.

Fig. 7 is a section through the lock taken on the line 7-7 of Fig. 2,but with the parts in their position when unlocked by the key.

Fig. 8 is a fragmentary section taken on the line 8-8 of Fig. 6.

Fig. 9 is a view of the key.

While the invention is susceptible of various modifications andalternative constructions, I

have shown in the drawing and will herein describe in detail thepreferred-embodiment, but itis to be understood that I do not therebyintend to limit the invention to the specific form disclosed, but intendto cover all modifications and alternative constructions falling withinthe spirit and scope of the invention as expressed in the appendedclaims.

The present embodiment of the invention comprises in general a casing, abolt, means normally preventing movement of the bolt but permitting suchmovement when shifted to a predetermined position, a key-operated deviceforshifting said means and moving said bolt, a lever for shifting saidmeans, a permutation device controlling the movement of said lever, anda cam member for moving said leverand said bolt when the permutationdevice is set.

As shown in Fig. 1 of the drawing, the present embodiment of the lock isconstructed to fit ina mortise cut in the edge of the door of a locker,cabinet, or the like, the door being indicated at A. The lock has acasing comprising a cup portion 20, which is completely enclosed withinthe mortise, and a mounting plate 21 arranged to fit flush with one faceof the-door and having a right-angle portion 22 fittingfiushwith theedge of the door. The cup portion 20 and the mounting plate 21 aresecured together as by screws. The mounting plate 21 may havea pluralityof holes 23 to receive screws for firmly securing the lock to the door.

A bolt 24 is slidably supported at one end in an aperture in theright-angle portion 22 of the mounting plate and is arranged to be movedfrom a position flush with the portion 22 to a position extending beyondthe portion 22 and into an aperture in a plate (not shown) in the doorjamb to lock the door in the usual manner.

The other end of the bolt 24 lies within the casing and has a slot 25which is arranged to embrace a pin 26 when the bolt is moved inwardly ofthe casing, the edge of the bolt sliding along a plate 28 secured to themounting plate 21. The pin 26 and slot 25 and the plate 28 thusaccurately guide that end of the bolt while the other end of the bolt isguided by the aperture in the right angle portion 22 of the mountingplate 21.

Asmentioned above, the invention includes a means normally preventingmovement of the bolt but permitting such movement when shifted to apredetermined position, the means herein illustrated comprising aplurality of tumblers 27 which are pivotally mounted on the pin 26. Eachtumbler has a notch 30 cut in the end opposite to the pivot pin 26 andlying substantially in line with the direction of movement of the bolt.A projection or fence-31 is formed on the bolt and is arranged normallyto abut against the end of the tumblers, as shown in Fig. 5, to preventA slot 46 which receives the end of a lug 4'7 exon the intermediateplate 33.

movement of the bolt, but, when the tumblers are shifted to apredetermined position, the fence 31 may enter the notches 30 in thetumblers and permit the bolt to be moved.

The tumblers are normally held in a position to prevent movement of thebolt by means of springs 32, and lugs 33 are formed on the ends of thetumblers which are arranged to abut against the fence 31 to preventmovement of the tumblers beyond such position by the springs.

The key-operated device, mentioned above, for shifting the tumblers andfor moving the bolt comprises, in the present instance, a key cylinder34 centrally mounted in the casing and having a cam 35 formed on itsinner end. The cylinder 34 has a slot 36 constructed to receive a key 37which has a bit 40 at its end arranged to fit in a slot in the cam 35.Other bits are formed on the key adjacent the bit 40 which areconstructed to strike the edges of the tumblers 27 adjacent the cylinder34 (see Fig. '7)

When the key 37 and cylinder 34 are rotated, the bits adjacent the bit40, which strike the edges of the tumblers individually, cause thelatter to pivot about the pin 26 against the action of the springs 32 toa position in which the fence 31 may enter the notches 30 in thetumblers, and the cam 35 then strikes the bolt and moves it inwardly ofthe casing to unlock the lock. A re verse rotation of the key andcylinder moves the bolt outwardly and permits the springs 32 to throwthe tumblers back to their normal position. Thus, the lock may be openedby the key-operated mechanism.v

An alternative mechanism for opening the lock is provided which iscontrolled by a permutationoperated device. The alternative mechanismcomprises a lever 41 which is pivoted to the plate 28 by a pin 42. Thefree end of the lever 41 has a boss 43 constructed to strike a lug 44formed on one of the tumblers 27. The lug 44 extends transversely pastthe edges of all the tumblers so that, when the lever 41 is swung andthe lug 44 is moved, all the tumblers are collectively shifted to aposition in which the fence 31 may enter the notches in the tumblers. Anintermediate plate 39 overlies the lever, tumblers and bolt and issecured to the mounting plate 21.

To swing the lever 41, a member 45 is rotatably mounted within thecasing and has a cam tending transversely from the lever 41 through anotch 48 out in the intermediate plate 39. The member 45 also has asecond cam slot 50 which loosely receives the end of a lug 51 extendingtransversely from the side of the bolt past the edge of the intermediateplate 39. The cam slots 46 and 50 are so formed that on rotation of themember 45, the lever 41 is swung about the pivot 3 42, by means of thelug 47, to shift the tumblers to a position in which the fence 31 mayenter the notches 30, and the bolt is then moved inwardly of the casingby means of the lug 51.

To control the movement of the lever 41, a permutation device is mountedon the intermediate plate 39 and is arranged when set to permit the lug47 to be moved by the cam member 45, and thus permit the lock to beopened thereby. The permutation device comprises a plurality of disks 52rotatably mounted on a spindle 53 secured The outer disk has a sleevesecured thereto constituting a cylindrical dial 54 surrounding thespindle 53, the outer disk being rotated by manual rotation of the dial54. The disks have the usual transversely extending lugs coacting withcorresponding lugs on the adjacent disks to permit them all to berotated, and each disk has a notch which, when alined with the notchesin the other disks, is adapted to receive the lug 47 on the lever 41when it is swung by the cam member 45. Thus, the permutation devicecontrols the movement of the lever 41, and hence the opening of the lockby the alternative mechanism.

The spindle 53 and the cylindrical dial 54 extend beyond the casing andbeyond the surface of the door (see Fig. 1) when the lock is mounted inthe mortise therein. The spindle is tubular and encloses thekey-cylinder 34 so that the dial 54 and the key-cylinder are concentric.

The cam member 45 has a sleeve 55 extending beyond the surface of thedoor and surrounding the cylindrical dial 54. A segment of the sleeve 55is cut away so that characters marked on the dial may be seen. A pointer56 extends from within the casing between the sleeve 55 and the dial 54adjacent the cut-away segment of the sleeve 55 and coacts with thecharacters marked on the dial to permit the permutation disks 52 to beset to a position where their notches are alined. lhe pointer 56 has aflange 57 within the casing resting on the permutation disks 52 and isheld against rotation by one of the screws securing the cup portion 20of the casing to the mounting plate 21.

When the key-operated mechanism is not in use, and it is desired tooperate the look by means of the permutation device, it is desirable toprevent the key-cylinder from rotating so that the cam 35 will notinterfere with the bolt when the latter is moved by the cam member 45.To accomplish this, a spring 53 is anchored to the mounted plate 21 asby a pin 61 and extends toward and presses against the cam 35 when it isin the inactive position, the pressure of the spring 58 holding the cam35 and hence the keycylinder 34 against rotation but permitting rotationthereof when the key-cylinder is turned by the key.

One important use of the present type of lock is in lockers for clubs,schools or the like. It is there often desirable to place the lockers ingroups and provide one key which will open only the locks in one group,other keys being provided for other groups, and also to provide a keywhich will open all the locks in the several groups. The presentconstruction employing a plurality of tumblers permits the use of suchkeys with adequate protection against the chance of the lock beingeasily picked.

In a school, for instance, each student is given the characters of thesetting of the permutation device at which the lock may be opened. Ifthe authorities wish to have access to the locker, the

key for the group including the locker may be used, or the master keywhich will open all the locks. Thus, the key-operated mechanism and themechanism controlled by the permutation device may be selectivelyoperated to open the lock.

The lock when mounted in a door presents a neat appearance as the onlyparts to appear on the outer face of the door are the concentricallyarranged key-cyiinder, dial, and operating sleeve for the cam member 45.It is evident that, on

account of the simplicity of the lock, it may be manufactured at a lowcost and yet its construction is such that it cannot easily be forcedopen.

I claim as my invention:

LA lock comprising, in combination, a movable bolt, means normally lyingin the path of said bolt to prevent movement thereof and constructed topermit such movement when shifted out of said path, and twoselectively-operable mechanisms adapted when operated to shift saidmeans and move said bolt, one of said mechanisms being 'key-operated andthe other permutationoperated.

"2.-'A lock comprising, in combination, a bolt, means normally lying inthe path of said bolt to prevent movement thereof and shiftable out of.said path, two selectively-operable mechanisms adapted when operatedtoshift said means and to move said bolt, one of said mechanisms beingkey-operated, and a permutation device controllingtheoperation of theother of said mechanisms.

3. A look comprising, in combination, a bolt, a plurality of tumblersnormally lying in the path of said bolt to prevent movement thereof andshif'table out of said path, a key-operated mechanismfor individuallyshifting said tumblers out of said path and for moving the bolt, analternativemechanism for collectively shifting said tumblers out of saidpath and for moving the bolt,

anda permutation device controlling the operation of said alternativemechanism.

4. A look comprising, in combination, a bolt, means normally abuttingsaid bolt to prevent movement thereof and constructed to permit such imovement when shifted to a predetermined posi tion, a lever independentof said means and operable when swung to shift said means, a permutationdevice'operable when set to permit said lever to swing, and a manuallymovable member having separate connections with said lever and said boltrespectively operable to swing said lever to shift said means to saidpredetermined position and operable to move said bolt.

5. A lock comprising, in combination, a bolt,

i means normally preventing movement of said bolt and constructed topermit such movement when shifted to a predetermined position, a leveroperable when swung to shift said means, a permutation device operablewhen set to permit said Y lever to swing, and a rotatable member havinga pair of cam-slots respectively for swinging said leverand formovingsaid bolt.

"6. 'A look comprising, in combination, a bolt having a lug projectingtherefrom, means normally preventing movement of said bolt andconstructed to permit such movement when shifted to a predeterminedposition, a lever operable, when swung, to shift said means and having alug projecting therefrom, a permutation device comprising a plurality ofdisks each having a notch in its periphery, said notches when alinedbeing arranged to receive the lug on said lever and permit the lever tobe swung, and a rotatable member having a pair of cam slots respectivelyengaging said lugs for swinging said lever and for moving said bolt.

'7. A lock comprising, in combination, a casing, a bolt, means normallypreventing movement of said boltand constructed to permit such move-:ment when shifted to a predetermined position,

a lever operable when swung to shift said means, a permutation devicecomprising a plurality of disks one of which has a cylindrical dialextending from said casing, and a rotatable member having cam slots forswinging said lever and for moving said bolt, said member having asleeve portion extending from said casing and surrounding said dial witha segment thereof cut away to permit said dial to be seen.

3. A look comprising, in combination, a casing,

a bolt, means normally preventing movement of said bolt and constructedto permit such movement-when shifted to a predetermined position, a'lever operable when swung to shift said means, a rotatable member forswinging said lever and for moving said bolt having a sleeve extendingfromsaid casing, a permutation device comprising a plurality of disks,one of which has a cylindrical dial extending from said casing throughsaid sleeve, said sleeve having a segment thereof cut away to permit thedial to be seen, and a pointer secured within said casing and extendingbetween said dial and said sleeve coacting with said dial to permit thesetting thereof.

9. A lock comprising, in combination, a casing, a plate mountedintermediatev the sides of said casing, a bolt mounted on one side ofsaid plate and having a lug extending to the other. side thereof, meansmounted on the same side of said plate normally preventing movement ofsaid bolt and'constructed to permit such movement when shifted to apredetermined position, a lever mounted on the same side of said plateand having a lug extending to the other side thereof, said lever whenswung being operable to shift said means, a spindle mounted centrally onthe side of said plate opposite to said bolt and extending externally ofsaid casing, a plurality of spaced permutation disks rotatably mountedon said spindle and having notches which when alined are arranged toreceive the lug on said lever to permit the latter to be swung, the diskfarthest from said plate having a sleeve surrounding said spindle andextending externally of said casing with a scale marked on the peripherythereof, a rotatable member having a pair of cam slots respectivelyengaging the lugs on the bolt and the lever for moving the bolt and thelever and having a sleeve extending externally of the casing around thesleeve of the disk, the sleeve of said rotatable member having a segmentcut away to permit the scale on said disk sleeve to be seen, and apointer secured with said casing and extending between said sleevesadjacent said scale to permit the setting of said disks.

10. A lock comprising, in combination, a casing, a plate mountedintermediate the sides of said casing, a bolt mounted on one side ofsaid plate, movable means mountedon the same side of said platecontrolling the operation of the bolt, a lever mounted on the same sideof said plate for moving said means out of said path, a tubular'spindlefixed at one end to said plate and extending from the ofher side of saidplate externally of said casing, a key cylinder mounted within saidspindle constructed to receive a key for operating said movable meansand said bolt, a permutation device including a plurality of disks and adial rotatably mounted on said spindle and controlling the movement ofsaid lever, and a member for moving said lever and said bolt rotatablymounted concentrically with the dial.

11. A lock comprising, in combination, a bolt having a fence formedthereon, a plurality of movable tumblers normally preventing movement ofsaid bolt, each tumbler having a slot arranged to receive said fence andto permit said bolt to be moved when the tumblers are shifted to apredetermined position, each of said tumblers being arranged to beshifted individually by a key, a

when swung to abut against said lug to shift said tumblers collectively,and a permutation-operated device controlling the swinging of saidlever.

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12. A lock comprising, in combination, an apertured casing, a bolthaving one end slidably guided in the aperture in said casing and havinga notch in its other end, a pin secured to said casing and fittingwithin said notch to guide the latter end of said bolt, a fence formedon the bolt, a plurality of tumblers pivotally mounted on said pin andhaving notches arranged to receive said fence when pivoted to apredetermined position to permit said bolt to be moved, springs tendingto pivot said tumblers out of said predetermined position to preventmovement of said bolt, said tumblers being constructed to beindividually moved to said predetermined position by a key, a lever forcollectively moving said tumblers to their predetermined position, and apermutationoperated device controlling the movement of said lever.

13. A lock comprising, in combination, a bolt, rotatable means formoving said bolt, and a permutation device controlling the operation ofsaid means and having a cylindrical dial movable relative to said means,said means including as a portion thereof a sleeve surrounding said diall with a segment thereof cut away to permit the dial to be seen.

14.. A look comprising, in combination, a bolt, rotatable means formoving said bolt, a permutation device controlling the operation of saidmeans and having a cylindrical dial movable relative to said means, saidmeans having a sleeve surrounding said dial with a segment thereof cutaway to permit the dial to be seen, and a fixed pointer extending in anaxial direction out from between said sleeve and said dial with n thecutaway segment to cooperate with dial in the setting thereof.

15. A look comprising, in combination, a bolt, key-operated mechanismfor moving said bolt in- 'j eluding a rotatable key cylinder, meansconnected with said belt for moving said bolt independently of therotation of said key cylinder, and a permutation device controlling theoperation of said means and having a tubular cylindrical dial 'irotatably mounted on and surrounding said key cylinder, said meanshaving a sleeve surrounding said dial by which said means may bemanually operated.

16. A look comprising; in combination, a casing, a plate mountedintermediate the sides of said casing and having a tubular spindlesecured at on end to said plate and extending from one side thereof, abolt, key-operated mechanism for moving said bolt mounted on the otherside of ,said plate and having a key cylinder extending concentricallywith the permutation device and operable on rotation to move said bolt,the rotation of said keyoperated mechanism being relative to andindependent of the said member.

18. A look comprising, in combination, a bolt,

a key-operated mechanism operable on rotation to move said bolt andincluding a key cylinder, a manually operable member mountedconcentriearly with said key cylinder and rotatable relative to andindependently of said key-operated mechanism for moving said bolt, apermutation device controlling the operation of said member andincluding a plurality of disks rotatably mounted on said key cylinderand a manually operable member independent of said bolt moving memberfor setting disks.

19. A lock comprising, in combination, a casing, a plate mountedintermediate the sides of said casing and having a tubular spindleextending from one side thereof, a bolt, a key-operated mechanismoperable on rotation to move said bolt mounted on the other side of saidplate and having a key cylinder extending through said tubular spindle,a member movable relative to said keyoperated mechanism and connectedwith said bolt for moving the latter, and a permutation devicecontrolling the operation of said member and including a plurality ofdisks rotatably mounted on said tubular spindle.

26. A look comprising, in combination, a casing, a plate mountedintermediate the sides of said casing, a bolt mounted on one side ofsaid plate, key-operated mechanism mounted on said side of said plateand including a cam adapted on rotation to move said bolt, a lugextending from said bolt to the other side of said plate, and apermutation-operated device mounted on said other side of said plateconcentrically with said key-operated mechanism and including a memberadapted on rotation to engage said lug and move said bolt.

21. A look comprising, in combination, a movable bolt, means normallypreventing the movement of said bolt and shiftable to permit suchmovement, and two selectively operable mechanisms, each of which isindependently capable of actuation to shift said means out of the pathof said bolt and thereafter to move said bolt, one of said mechanismsbeing key-operable and including a rotary key-receiving member which byrotation shifts said means and moves said bolt, and the other of saidmechanisms being permutationoperated and acting independently of saidkeyreceiving member to shift said means and move said bolt. 1

22. A look comprising, in combination, a movable bolt, means normallylying in the path of said bolt to prevent movement thereof andconstructed to permit such movement when shifted out of said path, andtwo selectively operable mechanisms, one of which is key-operated andthe other permutation-operated, each of said hamsnis being capable ofactuation independently of the other to shift said means out of the pathof said bolt and thereafter to move said bolt.

23. A look compri ing, in combination, a movable bolt, means normallypreventing the movement of said bolt and shiftable to permit suchmovement, and two .electively operable mechanisms to shift said meansand to move said bolt, one of said mechanisms being key-operated and theother permutation-operated, each of said mechanisms being connected withsaid bolt and with said means independently of the other mechanisms.

EDOR W. ALDEEN.

QRHMGATE 0F connection.

eaten: No. 1,961,187.

GEDOR W. ALDEEN.

It is hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as follows: Page 3,line 1255, claim 10, for "controlling the operation" read and normallylying in the path; and that the said Letters Patent should be read withthis correction therein that the same may conform to the record of thecase in the Patent Office.

Signed and sealed this 24th day of July, A. D. 1934.

Bryan M. Battey (Seal) Acting Commissioner of Patents.

June 5, 1934.

